FreeCalypso > hg > freecalypso-tools

annotate target-utils/libtiffs/findfile.c @ 1014:961efadd530a default tip

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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents 87cb03b35f77
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 #include <sys/types.h>
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2 #include "types.h"
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3 #include "struct.h"
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4 #include "globals.h"
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5 #include "macros.h"
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6
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7 static u8 *
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Mychaela Falconia <falcon@freecalypso.org>
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8 find_endofchunk(ino)
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9 {
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10 struct inode *irec = tiffs_active_index + ino;
0
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11 u8 *p;
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12 int i;
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13
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14 p = inode_to_dataptr(irec) + irec->len;
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Mychaela Falconia <falcon@freecalypso.org>
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15 for (i = 0; i < 16; i++) {
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16 p--;
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17 if (!*p)
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18 return(p);
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19 if (*p != 0xFF)
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20 break;
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21 }
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22 printf("Error: inode #%x has no valid termination\n", ino);
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23 return(p); /* XXX */
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24 }
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25
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26 tiffs_find_file(pathname, startret, sizeret, continue_ret)
0
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27 char *pathname;
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28 u8 **startret;
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29 size_t *sizeret;
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30 int *continue_ret;
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31 {
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32 int ino, cont;
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33 struct inode *irec;
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34 u8 *start, *end;
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35 int size;
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36
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37 ino = tiffs_pathname_to_inode(pathname);
0
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38 if (ino <= 0)
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39 return(-1);
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40 irec = tiffs_active_index + ino;
0
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41 if (irec->type != OBJTYPE_FILE) {
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42 printf("Error: %s is not a regular file\n", pathname);
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43 return(-1);
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44 }
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45 start = inode_to_dataptr(irec);
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46 start += strlen(start) + 1;
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47 end = find_endofchunk(ino);
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48 size = end - start;
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49 if (size < 0)
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50 size = 0;
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51 cont = irec->descend;
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52 if (cont == 0xFFFF)
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53 cont = 0;
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54 if (startret)
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55 *startret = start;
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56 if (sizeret)
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57 *sizeret = size;
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58 if (continue_ret)
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59 *continue_ret = cont;
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60 return(0);
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61 }
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62
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63 tiffs_get_segment(ino, startret, sizeret, continue_ret)
0
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64 int ino;
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65 u8 **startret;
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66 size_t *sizeret;
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67 int *continue_ret;
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68 {
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69 int cont;
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70 struct inode *irec;
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71 u8 *start, *end;
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72 int size;
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73
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74 for (;;) {
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75 irec = tiffs_active_index + ino;
0
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76 if (irec->type)
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77 break;
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78 if (irec->sibling == 0xFFFF) {
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79 printf("Error: segment inode #%d: deleted and no sibling\n",
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80 ino);
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81 return(-1);
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82 }
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83 ino = irec->sibling;
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84 }
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85 if (irec->type != OBJTYPE_SEGMENT) {
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diff changeset
86 printf("Error: inode #%x is not a segment\n", ino);
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87 return(-1);
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88 }
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89 start = inode_to_dataptr(irec);
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90 end = find_endofchunk(ino);
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91 size = end - start;
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92 if (size <= 0) {
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93 printf("Error: segment inode #%x: bad length\n", ino);
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94 return(-1);
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95 }
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96 cont = irec->descend;
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97 if (cont == 0xFFFF)
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98 cont = 0;
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99 if (startret)
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100 *startret = start;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 if (sizeret)
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Mychaela Falconia <falcon@freecalypso.org>
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102 *sizeret = size;
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Mychaela Falconia <falcon@freecalypso.org>
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103 if (continue_ret)
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104 *continue_ret = cont;
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Mychaela Falconia <falcon@freecalypso.org>
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105 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 }